2 merging galaxies discovered that act like a huge, cosmic laser

This star is planning a visit to our solar system

Huge ball of gas that could be 'cradle of life' probably smells gross

World's largest digital sky survey includes 3 billion objects

How NASA will keep Earth safe from asteroids

Japan's clever new tether will tackle space junk

Mysterious rings around distant star could be evidence of new planets

Don't miss the supermoon, meteor showers and other amazing December sky events

Celebrating the life of John Glenn

Matter is spontaneously appearing and then disappearing around this distant star

Was Einstein wrong? His views about the speed of light may soon be challenged

Immaculate star might be the most perfectly spherical object in the universe